Truck-bolster for cars.



No. 637,278. Patented. Nov. 2|, |899. n. w. oswALn. TRUCK BULSTER F03 CARS.

(Lppumion med am. s, 1899.)

(No Model.)

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UNITED STATES PATENT OFFICE.

RICHARD W. OSWALD, OF BLOOMSBURG, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TO EDWARD B. TUSTIN, OF SAME PLACE.

TRU'oK-BoLsTER FoR CARS.

SPECIFICATION forming part of Letters Patent No. 637,278, dated November 21, 1899. Application filed March 6, .1899. Serial No. 707,934. (No model.)

To all whom, it may concern:

Be it known that I, RICHARD W. OswALD, a citizen of the United States, residingat Bloomsburg, in thecounty of Columbia and State of Pennsylvania, have invented certain new and useful Improvements in Truck-Bolsters for Cars; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which-it appertains to make and use the same.

My invention relates to improvements in holsters for car-trucks, and particularly to that class of bolsters which are formed of angle-irons and plates properly bolted together.

It consists of a bolster comprising upper and lower members formed of angle irons or beams, brace-plates interposed between the upper and lower members, and struts or lateral brace-plates interposed between the side members of the bolster.

It also consists in certain other novel constructions, combinations, and arrangements of parts, as will be hereinafter described and claimed.

In the accompanying drawings, Figure l represents a side elevation of a truck-bolster constructed in accordance with myinvention. Fig. 2 represents a top plan View of the same. Fig. B'represents an end elevation of the said bolster. Fig. 4 represents a transverse vertical cross-section through the central portion of the said bolster. Fig. 5 represents a detail View of one of the struts or transverse braceplates; and Figf represents a cross-section through the bolster, showing a different kind of strut or brace-plate interposed between the side beams of the bolster.

In order to produce an inexpensive bolster and yet one which is capable of bearing great strains, I contemplate producing it of angleirons and plates which are commonly for` sale i upon the market and do not have to be specially rolled for the purpose.

In carrying out my invention the bolster is comprised of upper and lower angle bars or beams l and 2, respectively, the said upper and lower beams being duplicated upon each side of the bolster, as clearly seen in Figs. 3 and 4 of the drawings. The upper members l 1 are arched in thecenter, as illustrated in 'the said Fig. l.

' Fig. 1, while the lower members 2 2 are depressed centrally, as will also appear from The angle-irons l and 2 are preferably arranged with their deepest fianges vertical and their narrower Iianges arranged horizontally. The flanges of the beams l and 2'are brought side by side at the ends of the bolster and bolted together. 'llhe central portions of the beams l and 2 are braced with respect to each other by means of braceplates, as 3 3, which are preferably tapered so as to 1"It between the upper edges of the lower beams and the upper flanges of the upper beams, and thus ll the space between the parts. These brace-plates are securely riveted to the upper .angle-bars l. To join the paths of the angle-beams forming the sides of the bolster, I interpose between the same struts or brace-plates, as 4 5. The brace-plates or struts 4 are made larger than the plates 5 and are placed in the central portion of the bolster, as illustrated. The braceplates 5 are preferabl-y interposed between the side angle-irons at the ends of the bolster. The brace-plates 4 and 5 are practically the same, the only difference being in their size, and they are preferably composed of pieces of channel-irons, as 6 and 7, arranged with their webs adjoining, as clearly seen in Fig. 5, their flanges extending in opposite directions, the fianges of one channel-iron being arranged at right angles to that of the other angle-iron, so that the strut is thoroughly braced in both directions. The webs of these channel-irons are riveted together, and when the struts are put into position between the said side irons of the bolster their fianges are securely riveted to the flanges of the angle-irons l and 2.

.I preferably place two of these brace-plates or struts in the central portion of the bolster, and thus thoroughly brace the same at that point. I also' prefer to place two of the struts at each end of the bolster, as illustrated in the drawings. It will be noted by reference to Fig. 4 of the drawings that the rivets which secure the struts 4 to the upper angle-bars l are passed through the brace-plates 3.

While I prefer to construct the braces or struts as just described, yet it willbe apparent that struts cast in a single piece, as illustrated at 8 in Fig. 6, may be used. When I IOO employ the struts S, I preferably dispense with the brace-plates 3 and form the contour of the said struts so as to exactly lit the inner surfaces of the upper and lower angle-beams of the bolster. The struts are thus shouldered, as at 9 and lO, so as to lit between the upper edges of the lower beams and the upper iianges of the upper beams to thoroughly brace the parts with respect to each other.

It will be apparent from the above description that I am enabled to use simple merchantable material for the construction of a strong and well-braced bolster, thereby producing an inexpensive and yet rigid bolster for car-trucks, substantially as described.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A bolster comprising sides formed of upper and lower angle-beams, the said beams being bent away from each other centrally, and brace-plates inclosed between the flan ges of the said beams, substantially as described.

2. A bolster comprising in its construction sides formed of upper and lower members composed of angle-iron, the upper members of the sides being arched centrally and the lower members being depressed centrally, brace-plates interposed between the upper and lower members and cut to lit between the upper edges of the lower members and the upper flanges of the upper members, and means for'connecting the sides of the bolster, substantially as described.

3. A bolster comprising in its construction sides formed of upper and lower angle-irons, braces interposed between the upper edges of the lower irons and the upper flanges of the upper irons, and struts or brace-plates connecting the sides of the bolster at the ends thereof and at the center for securely holding the parts together, substantiallyas described.

4. A bolster comprising sides formed of upper and lower angle-irons having their vertical flanges placed together and their horizontal flanges extending toward each other, brace-plates interposed between the upper and lower angle-irons, and struts or braceplates interposed between the sides of the bolster, said struts bein g formed of channelbars placed web to web and having their flanges arranged at right angles to each other, said struts being securely riveted to the flanges of the sides to hold the parts of the bolster together, substantially as described.

In testimony whereof I hereunto afx my signature in presence of two witnesses.

RICHARD \V. OSVVALD.

Witnesses:

S. F. PEAcooK, JOHN II. HANNAN.

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